[Feat]: Create auth system

[Norbiros]

My suggestion

A lot of our ideas require accounts system...

1. Create system that stores user's information like permissions, name, profile picture.
2. Create login page (maybe using discord oauth)
3. Create temporary site where you can view user info like username, discord profile picture etc
4. Add session system so users don't get logged out (added by @goteusz-maszyk)
5. Verify if a user is from Gwardia (added by @goteusz-maszyk)

Possible alternatives

No response

[SzczurekYT]

Maybe I could take this one? It seems to be a good one for my level, and with that I could finally do something.

[goteusz-maszyk]

I think discord oauth will be the most straightforward one